Climate averages 1991–2020
Rasht weather
in September.
A warm, very wet month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Rasht: daytime highs average 24.6°C and nights cool to about 18.3°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 189 mm of rain on roughly 15 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average September day.
The nearest other city in this atlas is Bandar-e Anzalī (25 km away). In September its highs average 24.5°C, about as warm as Rasht, with 151 mm of rain.
Among the 128 cities listed in Iran, Rasht ranks joint 122nd of 128 for the warmest September highs and 128th of 128 for the driest September (rainfall, lowest first). The mean September high of those 128 cities is 31.0°C; Rasht is 6.5°C cooler than that mean.
From September to October, average highs fall by 3.7°C to 20.8°C, and monthly rainfall rises from 189 mm to 222 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Rasht climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.6°C2.6°C | 2.6°C | 125 | 12.7 | 9.910 h |
| February | 10.7°C2.3°C | 2.3°C | 123 | 12.7 | 10.811 h |
| March | 13.7°C5.0°C | 5.0°C | 118 | 14.4 | 11.912 h |
| April | 17.6°C9.0°C | 9.0°C | 88 | 12.8 | 13.113 h |
| May | 22.2°C13.8°C | 13.8°C | 55 | 9.5 | 14.114 h |
| June | 26.0°C18.1°C | 18.1°C | 72 | 8.1 | 14.715 h |
| July | 27.9°C20.9°C | 20.9°C | 82 | 8.4 | 14.514 h |
| August | 28.1°C21.2°C | 21.2°C | 109 | 10.6 | 13.614 h |
| September, selected | 24.6°C18.3°C | 18.3°C | 189 | 14.5 | 12.512 h |
| October | 20.8°C14.2°C | 14.2°C | 222 | 15.2 | 11.311 h |
| November | 15.8°C8.9°C | 8.9°C | 201 | 14.1 | 10.210 h |
| December | 12.5°C4.8°C | 4.8°C | 136 | 12.3 | 9.710 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Bandar-e Anzalī in SeptemberIran · 25 kmHigh 24.5°C · Low 22.0°C · 151 mm rain
- Lāhījān in SeptemberIran · 38 kmHigh 25.2°C · Low 18.6°C · 158 mm rain
- Zanjan in SeptemberIran · 118 kmHigh 25.6°C · Low 11.9°C · 7.9 mm rain
- Qazvin in SeptemberIran · 118 kmHigh 28.2°C · Low 15.5°C · 4.3 mm rain
- Alvand in SeptemberIran · 128 kmHigh 29.0°C · Low 14.9°C · 4.3 mm rain
- Moḩammadīyeh in SeptemberIran · 128 kmHigh 28.4°C · Low 14.9°C · 2.3 mm rain
- Tākestān in SeptemberIran · 134 kmHigh 29.2°C · Low 14.2°C · 2.0 mm rain
- Ardabīl in SeptemberIran · 157 kmHigh 22.4°C · Low 11.2°C · 24 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Rasht) is explained once on the Rasht year overview and on the Sources, method and limits page.